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Definition of Fountain grass
1. Noun. Tall perennial ornamental grass with long nodding flower plumes of tropical Africa and Asia.
Exact synonyms: Pennisetum Ruppelii, Pennisetum Setaceum
Generic synonyms: Grass
Group relationships: Genus Pennisetum, Pennisetum
Generic synonyms: Grass
Group relationships: Genus Pennisetum, Pennisetum